(本题8分)先将÷化简，然后自选一个合适的x值，代入化简后的式子求值。-九年级数学

更多内容推荐

• Great changes ______ in my school in the past ten years.A．took placeB．were taken place C．have taken
• ----Have you got your test result? ----Not yet. The papers _____.A．are still being corrected B．are n
• I used to drink a lot of tea but these days I _____ coffee.A．preferredB．preferC．have preferredD．am
• ．若有意义，则x的取值范围是．-九年级数学
• 设、，则下列运算中错误的是A．B．C．D．-九年级数学
• It is reported that the Voice of China Season II ______to air on Zhejiang TV this coming summer vaca
• 计算：．-九年级数学
• （）A．3B．C．D．9-九年级数学
• 对描述错误的一项是（）A．面积为2的正方形的边长B．它是一个无限不循环小数C．它是2的一个平方根D．它的小数部分大于2－-八年级数学
• ．-九年级数学
• — Where are you living now?— In Chicago. But I ______ in New York for 3 years.A．have livedB．had liv
• You ______ things about. Look, what a mess in your room! A．always throwB．have always thrownC．are al
• — Hello, Jim. I ______ to see you today. Sonia said you ______ ill.— Oh, I’m OK.A．don’t expect; were
• （本题满分8分）化简二次根式：小题1:（1）小题2:（2）（＜0）-九年级数学
• Remember to give your parents my regards when you _____home.A．phonedB．phoneC．will phoneD．have phoned
• ——Lily is going to make a presentation in class this afternoon.—Oh, really? I _____it was Michael’s
• The house is dirty because itsince they moved out.A．doesn’t cleanB．isn’t cleanedC．hasn’t cleanedD．ha
• —Who do you think will get the first prize? —Mary, of course. She ________ for the competition for m
• --You haven’t said a word about the design ,Mike. What’s your idea?----I’m sorry I _______ about som
• 要使式子有意义，a的取值范围是（）A．B．C．a≤2D．a≥-九年级数学
• 先化简，再求值：，其中a=-1.-九年级数学
• By the end of last year, another new gymnasium ______ in Beijing.A．would be completedB．was being com
• 计算：＝.-九年级数学
• 计算：小题1:（1）；小题2:（2）．-八年级数学
• Whether ways will be found to help China _______ the current world financial crisis is just _______
• --- What’s Joan doing?--- ________ newspapers in the room.A．She readingB．She readsC．To read D．Readin
• We must work hard toa good knowledge of English.A．acquireB．catchC．holdD．take-高二英语
• Great changes ______in his hometown in the last twenty years.A．were taken placeB．have taken placeC．h
• 小题1:（1）计算：．小题2:（2）解方程：-九年级数学
• Would you please keep silent? The weather report ________ and I want to listen.A．is broadcastedB．is
• You have failed to do what you to and I'm afraid the teacher will blame you．A．will expectB．will
• —_____ you _____ the sitting room? —Yes. It is 7 meters long and 4.5 meters wide.A．Can; measure B．Ar
• Had it been possible I would have gone to the movies, but I _______ busy.A．had beenB．amC．wasD．would
• 函数中，自变量的取值范围是（）．A．＞B．≥C．≤D．≠-八年级数学
• 化简-八年级数学
• The children talked so loudly at dinner table that I had to struggle _________A．to be heardB．to have
• It was not until then that I came to know that knowledge _______ only from practice.A．had comeB．has
• （本小题满分9分）化简：已知，．-九年级数学
• 计算：-九年级数学
• 如果有意义，那么字母的取值范围是▲.-九年级数学
• （本题满分8分）小题1:（1）小题2:-九年级数学
• 若=1－a，则a的取值范围是.-九年级数学
• 计算：-九年级数学
• 下列计算正确的是A．B．C．D．-八年级数学
• Before coffee was introduced, Muslims used to drink a special kind of soup to _______ awake.A．appear
• 化简▲．-九年级数学
• The couple decided to adopt the child whose parents ________in an accident.A．had been killedB．are ki
• Excuse me, Mary, a reporter from Vanity Fair _______ all day. Could you speak to her now?.A．has been
• — I'm leaving tomorrow.— Oh, what a pity! I won't be able to see you off. I ____ a tele-co
• 若最简二次根式和是同类二次根式，那么a=；b=-九年级数学